199680908 has 12 divisors (see below), whose sum is σ = 399361872. Its totient is φ = 85577520.

The previous prime is 199680907. The next prime is 199680911. The reversal of 199680908 is 809086991.

199680908 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (199680907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3565703 + ... + 3565758.

It is an arithmetic number, because the mean of its divisors is an integer number (33280156).

Almost surely, 2^199680908 is an apocalyptic number.

It is an amenable number.

199680908 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199680908 is a wasteful number, since it uses less digits than its factorization.

199680908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131472 (or 7131470 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 199680908 is about 14130.8495144489. The cubic root of 199680908 is about 584.4923718716.

The spelling of 199680908 in words is "one hundred ninety-nine million, six hundred eighty thousand, nine hundred eight".